Tipularia

…A perennial orchid that grows on the forest floor in warm temperate regions. There are several pseudobulbs underground that grow in a row. The axillary buds of the pseudobulbs develop a single new leaf in autumn and overwinter, but die in summer. The base of the stem thickens and becomes a new pseudobulb. It has a leaf stalk about 5 cm long, a narrow ovate leaf blade, reddish purple on the underside, and 3-6 cm long. In May and June, it grows a flower stalk about 20 cm high at the top, and produces about 10 flowers. The flowers are pale yellow-green with a purple-brown tinge, bloom downward, and are about 7 mm in diameter. The petals and sepals are broadly linear and open flat, the lip is three-lobed, and the lateral lobes are small. …

*Some of the terminology that mentions "Tipularia" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…暖温帯の林床に生えるラン科の多年草。地下に数個の偽球茎があり，連なる。偽球茎の腋芽（えきが）は秋に新葉を1枚展開し，越冬するが，夏には枯れる。茎の基部は肥厚し，新偽球茎となる。5cmくらいの葉柄があり，葉身は狭卵形で，裏面は紅紫色を帯び，長さ3～6cm。5～6月，高さ20cm前後の花茎を頂生し，10個くらいの花をつける。花は紫褐色を帯びた淡黄緑色で，下向きに咲き，径約7mm。花弁と萼片は広線形で平開し，唇弁は3裂し，側裂片は小さい。…

※「Tipularia」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報